US5673196A - Vector electricity meters and associated vector electricity metering methods - Google Patents
Vector electricity meters and associated vector electricity metering methods Download PDFInfo
- Publication number
- US5673196A US5673196A US08/564,543 US56454395A US5673196A US 5673196 A US5673196 A US 5673196A US 56454395 A US56454395 A US 56454395A US 5673196 A US5673196 A US 5673196A
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- US
- United States
- Prior art keywords
- interval
- orthogonality
- computing
- phase
- power line
- Prior art date
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- Expired - Lifetime
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
- G01R21/1331—Measuring real or reactive component, measuring apparent energy
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Inverter Devices (AREA)
Abstract
Description
U.sub.X =E.sub.rms ×I.sub.rms
y=c.sub.1 x.sub.1 +c.sub.2 x.sub.2 + . . . +c.sub.n x.sub.n.(1)
<x.sub.i x.sub.j >,i≠j.
<g.sub.i (t),g.sub.j (t)>=0,i≠j.
f(t)=c.sub.1 g.sub.1 (t)+c.sub.2 g.sub.2 (t)+ . . . +c.sub.n g.sub.n (t).
Q'=2 sin (δ.sub.1 -δ.sub.2)
Q'=g(f)Q.
Claims (118)
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/564,543 US5673196A (en) | 1995-11-30 | 1995-11-30 | Vector electricity meters and associated vector electricity metering methods |
TW085112914A TW357268B (en) | 1995-11-30 | 1996-10-22 | Vector electricity meters and associated vector electricity metering methods |
CA002190905A CA2190905C (en) | 1995-11-30 | 1996-11-21 | Vector electricity meters and associated vector electricity metering methods |
BR9605750A BR9605750A (en) | 1995-11-30 | 1996-11-29 | Vector electricity meters and associated vector electricity measurement processes |
MX9605980A MX9605980A (en) | 1995-11-30 | 1996-11-29 | Vector electricity meters and associated vector electricity metering methods. |
ES96308666T ES2319826T3 (en) | 1995-11-30 | 1996-11-29 | ELECTRICITY VECTOR METERS AND ASSOCIATED ELECTRICITY VECTOR MEASUREMENT PROCEDURES. |
DE69637822T DE69637822D1 (en) | 1995-11-30 | 1996-11-29 | Vector electricity meter and procedure |
EP96308666A EP0777125B1 (en) | 1995-11-30 | 1996-11-29 | Vector electricity meters and associated vector electricity metering methods |
CN96117256.8A CN1108528C (en) | 1995-11-30 | 1996-11-30 | Vector electricity meters and associated vector electricity metering methods |
US08/872,035 US5978741A (en) | 1995-11-30 | 1997-04-09 | Vacuum fixture |
US08/872,034 US6173236B1 (en) | 1995-11-30 | 1997-06-10 | Vector electricity meters and associated vector electricity metering methods |
US08/872,033 US5854995A (en) | 1995-11-30 | 1997-06-10 | Vector electricity meters and associated vector electricity metering methods |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/564,543 US5673196A (en) | 1995-11-30 | 1995-11-30 | Vector electricity meters and associated vector electricity metering methods |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/872,035 Division US5978741A (en) | 1995-11-30 | 1997-04-09 | Vacuum fixture |
US08/872,033 Division US5854995A (en) | 1995-11-30 | 1997-06-10 | Vector electricity meters and associated vector electricity metering methods |
US08/872,034 Division US6173236B1 (en) | 1995-11-30 | 1997-06-10 | Vector electricity meters and associated vector electricity metering methods |
Publications (1)
Publication Number | Publication Date |
---|---|
US5673196A true US5673196A (en) | 1997-09-30 |
Family
ID=24254904
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/564,543 Expired - Lifetime US5673196A (en) | 1995-11-30 | 1995-11-30 | Vector electricity meters and associated vector electricity metering methods |
US08/872,035 Expired - Lifetime US5978741A (en) | 1995-11-30 | 1997-04-09 | Vacuum fixture |
US08/872,033 Expired - Fee Related US5854995A (en) | 1995-11-30 | 1997-06-10 | Vector electricity meters and associated vector electricity metering methods |
US08/872,034 Expired - Fee Related US6173236B1 (en) | 1995-11-30 | 1997-06-10 | Vector electricity meters and associated vector electricity metering methods |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/872,035 Expired - Lifetime US5978741A (en) | 1995-11-30 | 1997-04-09 | Vacuum fixture |
US08/872,033 Expired - Fee Related US5854995A (en) | 1995-11-30 | 1997-06-10 | Vector electricity meters and associated vector electricity metering methods |
US08/872,034 Expired - Fee Related US6173236B1 (en) | 1995-11-30 | 1997-06-10 | Vector electricity meters and associated vector electricity metering methods |
Country Status (9)
Country | Link |
---|---|
US (4) | US5673196A (en) |
EP (1) | EP0777125B1 (en) |
CN (1) | CN1108528C (en) |
BR (1) | BR9605750A (en) |
CA (1) | CA2190905C (en) |
DE (1) | DE69637822D1 (en) |
ES (1) | ES2319826T3 (en) |
MX (1) | MX9605980A (en) |
TW (1) | TW357268B (en) |
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US5854995A (en) * | 1995-11-30 | 1998-12-29 | General Electric Company | Vector electricity meters and associated vector electricity metering methods |
WO1999060415A1 (en) * | 1998-05-15 | 1999-11-25 | Abb Power T & D Company Inc. | Apparatus and method for detecting tampering in a multiphase meter |
US5995911A (en) * | 1997-02-12 | 1999-11-30 | Power Measurement Ltd. | Digital sensor apparatus and system for protection, control, and management of electricity distribution systems |
US6397157B1 (en) | 1999-07-02 | 2002-05-28 | General Electric Company | Method and apparatus for real time measurement of three phase electrical parameters |
US6486652B1 (en) * | 1999-06-30 | 2002-11-26 | General Electric Company | High function, user configurable electricity meter |
US6522256B2 (en) * | 2000-05-16 | 2003-02-18 | Southern Electric Equipment | Hybrid current and voltage sensing system |
US20030078742A1 (en) * | 2001-10-11 | 2003-04-24 | Vanderzee Joel C. | Determination and applications of three-phase power factor |
US6559631B1 (en) * | 1998-04-10 | 2003-05-06 | General Electric Company | Temperature compensation for an electronic electricity meter |
US6714000B2 (en) | 1999-06-14 | 2004-03-30 | Genscape, Inc. | Method for monitoring power and current flow |
US6771058B2 (en) | 2000-04-13 | 2004-08-03 | Genscape, Inc. | Apparatus and method for the measurement and monitoring of electrical power generation and transmission |
US6828771B1 (en) * | 1998-07-08 | 2004-12-07 | Electric Power Research Limited | Electrical power measurement |
US20050194962A1 (en) * | 1993-03-26 | 2005-09-08 | Briese Forrest W. | Electronic revenue meter with automatic service sensing |
US20060007016A1 (en) * | 2004-07-09 | 2006-01-12 | Centerpoint Energy, Inc. | Utilities and communication integrator |
US20060113939A1 (en) * | 2004-11-11 | 2006-06-01 | Vacon Oyj | Frequency converter overvoltage protection |
US20070188369A1 (en) * | 2006-02-14 | 2007-08-16 | Takatoshi Itagaki | Semiconductor integrated circuit device |
US20090147551A1 (en) * | 2007-12-05 | 2009-06-11 | Siemens Aktiengesellschaft | Pilot control of a voltage source converter |
US20090287428A1 (en) * | 2008-05-13 | 2009-11-19 | Elster Electricity, Llc | Fractional samples to improve metering and instrumentation |
US8014964B1 (en) * | 2008-08-23 | 2011-09-06 | Khalsa Research and Consultancy Pty Ltd | Electrical power and energy measurement method and apparatus |
US20110241655A1 (en) * | 2010-04-02 | 2011-10-06 | Korea Electric Power Corporation | Bidirectional 3 phase power meter for compensating reverse load flow and method for metering thereby |
US8319509B1 (en) | 2012-04-30 | 2012-11-27 | Atmel Corporation | Testing circuit for an analog to digital converter |
US20130175965A1 (en) * | 2011-07-08 | 2013-07-11 | Siemens Aktiengesellschaft | Method for estimating a torque of a three-phase drive motor for a vehicle |
US8589095B2 (en) | 2010-05-03 | 2013-11-19 | Aten International Co., Ltd. | Power measuring device |
US20140035760A1 (en) * | 2012-08-03 | 2014-02-06 | Korea Electric Power Corporation | Watt-hour meter and method of detection of abnormal status thereof |
US20170168098A1 (en) * | 2014-10-20 | 2017-06-15 | Itron, Inc. | Electrical Phase Identification |
US20170352650A1 (en) * | 2016-06-02 | 2017-12-07 | Samsung Electronics Co., Ltd. | Integrated circuit and standard cell library |
US10312681B2 (en) | 2015-05-28 | 2019-06-04 | Itron, Inc. | Automatic network device electrical phase identification |
US10327048B2 (en) | 2012-04-20 | 2019-06-18 | Itron Global Sarl | Automatic network topology detection and fraud detection |
US10459016B2 (en) | 2014-12-02 | 2019-10-29 | Itron, Inc. | Electrical network topology determination |
US10571493B2 (en) | 2014-02-25 | 2020-02-25 | Itron, Inc. | Smart grid topology estimator |
US11268995B2 (en) | 2019-10-11 | 2022-03-08 | Schweitzer Engineering Laboratories, Inc. | Intelligent electronic device control using wirelessly transmitted multi-phase electrical measurements |
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JPH10336883A (en) * | 1997-04-02 | 1998-12-18 | Toshiba Corp | Method and device for detecting out-of-step of power supply system |
US6087626A (en) * | 1998-02-17 | 2000-07-11 | Illinois Tool Works Inc. | Method and apparatus for welding |
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BRPI0017072B8 (en) * | 2000-01-26 | 2015-12-22 | Abb Automation Inc | system and method for digitally compensating for frequency and temperature induced errors in a phase shift in the current detection of electronic energy meters |
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US20030111999A1 (en) * | 2001-12-19 | 2003-06-19 | Ertugrul Berkcan | Residential electricity meter |
AU2003267460A1 (en) * | 2002-09-13 | 2004-04-30 | Consejo Superior De Investigaciones Cientificas | Device and method for measuring the quality of electrical signals in a three-phase network |
ES2215467B1 (en) * | 2002-09-13 | 2005-12-16 | Consejo Sup. De Investig. Cientificas | APPARATUS AND METHOD OF MEASUREMENT OF ELECTRICAL MAGNITUDES IN A THREE PHASE NETWORK. |
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FR2901911B1 (en) * | 2006-06-02 | 2008-08-01 | Schneider Electric Ind Sas | METHOD AND DEVICE FOR SAMPLING ELECTRIC SIGNALS OF A MULTIPHASED ELECTRICAL SYSTEM |
US8359215B1 (en) * | 2007-07-12 | 2013-01-22 | Ecova, Inc. | System and method for managing utility resources based on normalized utility usage |
ES2342528A1 (en) * | 2008-07-18 | 2010-07-07 | Universidad Politecnica De Valencia | Method and system for calculating the reactive power in disturbed three-phase networks |
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US20110153104A1 (en) * | 2009-12-22 | 2011-06-23 | General Electric Company | Appliance with energy consumption reporting and method |
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US20110313582A1 (en) * | 2010-06-20 | 2011-12-22 | Microsoft Corporation | Classifying devices by fingerprinting voltage and current consumption |
CN102253276A (en) * | 2011-05-03 | 2011-11-23 | 河海大学常州校区 | Real-time detection method for phase potential of motor under control of PWM |
KR20130033212A (en) * | 2011-09-26 | 2013-04-03 | 한국전력공사 | Electronic watt-hour meter for detecting n phase current by waveform superposition of 3 phase input current and method for detecting using thereof |
TWI440279B (en) | 2011-10-25 | 2014-06-01 | Inst Information Industry | Electricity consumption measurement apparatus, electricity consumption measurement method, and non-transitory tangible machine-readable medium thereof |
GB201309823D0 (en) * | 2013-06-01 | 2013-07-17 | Metroic Ltd | Current measurement |
CN103543335B (en) * | 2013-10-30 | 2016-04-20 | 国家电网公司 | A kind of synchronous phasor measuring method |
FR3020468B1 (en) * | 2014-04-24 | 2016-05-13 | Sagemcom Energy & Telecom Sas | METHOD OF DETECTING THE ABSENCE OF CONNECTION OF A POLYPHASE ELECTRIC METER TO THE NEUTRAL |
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US10197605B2 (en) * | 2015-03-26 | 2019-02-05 | Microchip Technology Incorporated | System and method for ripple-free AC power determination |
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US20080068006A1 (en) * | 1993-03-26 | 2008-03-20 | Itron, Inc. | Electronic revenue meter with automatic service sensing |
US20080068004A1 (en) * | 1993-03-26 | 2008-03-20 | Itron, Inc. | Electronic revenue meter with automatic service sensing |
US7298135B2 (en) * | 1993-03-26 | 2007-11-20 | Itron, Inc. | Electronic revenue meter with automatic service sensing |
US7999532B2 (en) | 1993-03-26 | 2011-08-16 | Itron, Inc. | Apparatus for electronically measuring or distributing electrical energy |
US20100109650A1 (en) * | 1993-03-26 | 2010-05-06 | Itron, Inc. | Apparatus for electronically measuring or distributing electrical energy |
US7688061B2 (en) | 1993-03-26 | 2010-03-30 | Itron, Inc. | Apparatus for electronically measuring electrical energy |
US7688060B2 (en) | 1993-03-26 | 2010-03-30 | Itron, Inc. | Electronic revenue meter with automatic service sensing |
US6173236B1 (en) * | 1995-11-30 | 2001-01-09 | General Electric Company | Vector electricity meters and associated vector electricity metering methods |
US5854995A (en) * | 1995-11-30 | 1998-12-29 | General Electric Company | Vector electricity meters and associated vector electricity metering methods |
US5995911A (en) * | 1997-02-12 | 1999-11-30 | Power Measurement Ltd. | Digital sensor apparatus and system for protection, control, and management of electricity distribution systems |
US6559631B1 (en) * | 1998-04-10 | 2003-05-06 | General Electric Company | Temperature compensation for an electronic electricity meter |
US6236197B1 (en) | 1998-05-15 | 2001-05-22 | Abb Power T&D Company Inc. | Apparatus and method for detecting tampering in a multiphase meter |
WO1999060415A1 (en) * | 1998-05-15 | 1999-11-25 | Abb Power T & D Company Inc. | Apparatus and method for detecting tampering in a multiphase meter |
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Also Published As
Publication number | Publication date |
---|---|
EP0777125B1 (en) | 2009-01-21 |
TW357268B (en) | 1999-05-01 |
ES2319826T3 (en) | 2009-05-12 |
DE69637822D1 (en) | 2009-03-12 |
EP0777125A3 (en) | 1998-05-20 |
US5854995A (en) | 1998-12-29 |
BR9605750A (en) | 1998-08-25 |
CN1156828A (en) | 1997-08-13 |
US6173236B1 (en) | 2001-01-09 |
US5978741A (en) | 1999-11-02 |
CN1108528C (en) | 2003-05-14 |
CA2190905A1 (en) | 1997-05-31 |
EP0777125A2 (en) | 1997-06-04 |
CA2190905C (en) | 2005-05-03 |
MX9605980A (en) | 1998-04-30 |
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